Got it 
Are ASIO4ALL’s peformance at 128 buffer size and dedicated driver’s performance at 128 buffer size comparable? I’m asking this because I still have some kind of doubts on this problem - is it software-related or hardware-related or both? In my case Cubase is able to load ton of SGA plugins which are used in DAWBench DSP test - my Ryzen 7 1700 usually begin to produce dropouts only after 115th plugin at 44.1 kHz and 64 ASIO buffer’s size leading to overall CPU load around 81%, the load percentage I never saw on Cubase 9 with other plugins that I use everyday - Kontakt, Spire and etc. Why my CPU is able to hold so much SGA’s and is not able to hold just a few Kontakt/Spire/DUNE/Twin2 instances? Why FL Studio is able to hold this (without ASIO Guard, AFAIK FL Studio doesn’t have “anticipative” processing) better than Cubase? Why ASIO Guard makes everything so much better in Cubase? So many questions and no answers yet 